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DiegoHa's avatar
DiegoHa
Icon for New Contributor rankNew Contributor
5 years ago

Cyclon IV active serial configuration failed

I have a problem to configure a new custom FPGA Board. We use a Cyclon IV (EP4CE22E22C8N) with an ISSI (IS25LP064A) Serial Flash Memory. (Similar to the Terasic DE0-Nano Board) We use Quartus Pri...
YuanLi_S_Intel's avatar
YuanLi_S_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


What about MSEL3 status? Is it LOW as well?

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyclone-iv/cyclone4-handbook.pdf (Page 173)


What about the CONF_DONE status?


Also, can you check the following?

  • The nCE, nCONFIG, nSTATUS and CONF_DONE pins are connected according to the recommended setup in the device handbook. If pull-up/pull-down resistors are required, ensure the resistor values are correct.
  • The power supplies are ramped up to the appropriate voltage level according to the device datasheet and are stable throughout the operation
  • Which quartus version are you using? Can you try with other newer quartus version?


Thank You.


  • DiegoHa's avatar
    DiegoHa
    Icon for New Contributor rankNew Contributor
    5 years ago

    Hi,

    I use an EP4CE22E22 device in a E144 package which has no MSEL 3 Pin.

    The CONF_DONE Pin is always low.

    nCE is tied to GND
    nConfig has 10k pullup to vccio (3V3)
    nStatus has 10k pullup to vccio (3V3)
    CONF_DONE has 10k pullup to vccio (3V3)

    vccio = 3.29V ripple +/-40mV
    va = 2.49V ripple +/-40mV
    vccint/vccpll = 1.21V ripple +/-30mV

    all supplies are stable during programming

    I use Quartus Prime 20.1.1 standard revision